Requires completion of the Nomad's Requiem quest to be fought in the Dominion Tower.
His ordinary attacks, using any of the three combat types (mage, melee, or range), hit in the 200-300s, and protection prayers will not block his attacks. However, he alternates with 3 different special moves that make this fight very challenging. He will rotate through these special attacks in order and use ordinary attacks in between:

1.His first special attack will drop red, bomb-like objects all around, and Nomad will start charging up to shoot a very powerful attack at you.

Wait a few seconds, then run south, outside the circle of bombs. Be sure not to step on any bombs, as each will deal 400 damage.

Run to either side and hide behind a pillar. Nomad will scream "You cannot hide from my wrath" and shoot a charged ball in your direction. If not blocked by the pillar, this will do 750 damage. This attack can be reduced in damage if you wear armour with magic absorbtion bonuses.

After Nomad shoots, the bombs will slowly blow up. Only after they explode is it safe to go near Nomad again.

2.His second special, while not as dangerous, can still be a threat. He will split into four clones of himself, and only one of them is the real one. They will all be attacking you for 50-100 damage. To end this attack you must find the real Nomad, which can be easily discovered as the clone that attacks last among the four. Alternately you can simply hide behind a pillar for around 30 seconds until the clones vanish on their own. This provides a brief opportunity to heal and exchange with a familiar during the battle. It is important to make sure that you attack Nomad when he says "Face Me" after the clones vanish to prevent his LP from resetting.

3.His third special will freeze you with ice barrage, then start to charge up. While you are frozen you can use range to do some damage. His next attack, while it looks like the first charge attack, will inflict one less than your maximum life points (a sure kill if you are below your maximum). This makes Saradomin brews almost imperative. After his attack he will give you some time to heal before he starts attacking again. This attack can be reduced in damage if you wear armour with magic absorbtion bonuses.

4.Once you get Nomad down to about 1/4 life points, he will heal to half LP, and continue the fight. This will only happen once throughout the battle.

5.After you get him down do 1/4 LP again, he will shout "This ends now!" and begin rapidly attacking you with melee (throwing knife speed, hits 200s-300s). This is much more dangerous than his normal magic attack! Pay close attention to your life points, keeping it above at least 400. During this phase you will be unable to interact with your familiar as his attacks are too fast. The "Take BoB" function can still be used.

6.One strategy is to run behind a pillar and employ a "hit and run" strategy, allowing Nomad to only strike once per melee hit (instead of the 3 or so per returned hit normally). Be careful, however, as staying behind a pillar too long will result in Nomad screaming "Coward!" and restoring all of his life points.